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A characteristic of American culture that has become almost a tradition is to respect the self-made man-the man who has risen to the top through his own efforts, usually beginning by working with his hands. While the leader in business or industry or the college professor occupies a higher social position and commands greater respect in the community than the common laborer or even the skilled factory worker, he may take pains to point out that his father started life in America as a farmer or laborer of some sort. This attitude toward manual (体力的) labor is now still seen in many aspects of American life. One is invited to dinner at a home that is not only comfortably but even luxuriously (豪华地)furnished and in which there is every evidence of the fact that the family has been able to afford foreign travel, expensive hobbies, and college education for the children; yet the hostess probably will cook the dinner herself, will serve it herself and will wash dishes afterward, furthermore the dinner will not consist merely of something quickly and easily assembled from contents of various cans and a cake or a pie bought at the nearby bakery. On the contrary, the hostess usually takes pride in careful preparation of special dishes. A professional man may talk about washing the car, digging in his flowerbeds, painting the house. His wife may even help with these things, just as he often helps her with the dishwashing. The son who is away at college may wait on table and wash dishes for his living, or during the summer he may work with a construction gang on a highway in order to pay for his education.According to the passage, the hostess cooks dinner herself mainly because （）
简述工伤保险的概念
MIDI文件中存放的是（）。
导游讲解词的特点有（）。
接地电阻分（）接地电阻和（）接地电阻。一般（）接地电阻的值小于（）接地电阻值，风电机所说的都是（）接地电阻。
基金子公司业务比较灵活，所受限制较少，目前主要业务包括（ ）。
氯丙嗪不具有的不良反应（ ）。
某人在阑尾炎手术后的康复期间，为了促进其伤口愈合，你建议他应该多吃一些奶、蛋、鱼、肉。
系泊试验中对主机满负荷试验应在标定转速的（）时，连续运转试验2小时。
关于产褥期临床表现，不正确的是（）
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串扰故障可以通过每条电缆（）来减小。
电缆常见的故障有（）。
电缆线路出现故障应首先判明故障的（）。
电缆故障声测定点时，禁止（）电缆外皮或冒烟小洞，以免触电。
电缆抢修中当判明电缆故障点在200米范围内，又无法判明具体故障点时，为压缩故障延时，先割接电缆和使用电缆快速抢险器恢复设备使用。
电缆抢修中当判明电缆故障点在200米范围内，又无法判明具体故障点时，为压缩故障延时，先割接电缆和使用电缆快速抢险器恢复设备使用。
电缆故障声测定点时，禁止直接_____电缆_____或冒烟小洞，以免触电。
用蜂鸣器判断电缆芯线故障时，电缆两端选好公共线后，在电缆一端某一条芯线上放音，另一端在两条芯线上都能听到同样大小的蜂鸣音，证明该线对（）。
使用电缆故障测试仪测试电缆故障一般分几个步骤进行？
用蜂鸣器判断电缆芯线故障时，电缆两端选好公共线后，在电缆一端某一条芯线上放音，另一端在两条芯线上都能听到同样大小的蜂鸣音，证明该线对（）。